Ngokwezibalo, kwi-40% yamatyala, ukungabikho kwabantwana kubangelwa ngenxa yokungabikho komntwana , omnye u-40% -yindoda. I-20% eseleyo isiphumo sokungabikho komntwana, xa iingxaki zikhoyo kuzo zombini amaqabane.
Isibonakaliso sokuqala sokungabikho komntwana, kokubini besilisa nabesifazana, ukungabikho kokukhulelwa kunye ngokwesondo esingakhuselekanga rhoqo iminyaka emi-2 okanye ngaphezulu. Ukuba ukukhulelwa akuzange kwenzeke emva kweenyanga eziyi-2-3 zokuzama, akuthethi ngokusweleka-mhlawumbi, izenzo zesondo azihambisani nexesha elihle kumjikelezo wenyanga. Kodwa ukuba oku kuphele iminyaka engaphezu konyaka, kukho ithuba lokufaka isicelo kwizengcali.
Izizathu zezi zinto zininzi-izifo ezithathelwanayo, ukuphazamiseka kwamathambo e-fallopian kumfazi okanye kwi-vas deferens kwindoda, izifo ze-hormonal, i-varicose veins of the testicle, ukunciphisa amandla, ukukhubazeka kwe-anatomical ye-uterus, endometriosis nokunye okuninzi.
Isibonakaliso sokuqala sokusweleka kwabantwana besifazane kukungabikho kwenyanga kunye nokuvuthwa kwayo. Isizathu sokungabikho kwimihla ngexesha lokubeletha lingathatha iipilisi zokulawula ukuzalwa, ukuhluleka kwe-ovarian, iingxaki zesistim se-central nervous, ezingabonakali ngokupheleleyo izitho zokuzala, ukungalingani kwama-hormonal kunye nokunyamekela ngokugqithiseleyo, ngenxa yokungahambi kwamanqwanqwa angaphantsi, ukuyeka ukuya kwesikhashana kuyayeka ukugcina amandla.
Akukho zibonakaliso zesimo sokungabikho kwindoda kumadoda. Ingabonwa kuphela ngokuqhuba uchungechunge lokuhlalutya, owokuqala luyi-spermogram. Isizathu esona sivame ukuhamba ngokwaneleyo kwe-spermatozoa okanye kwinani elincinane.
Unobangela obuninzi bokungapheliyo lunokuphulukiswa - ke ungalilahli ithemba ngaphambi kwexesha. Kufuneka kuphela ochwepheshe abanekhono, ngubani ochanekileyo ngokuchonga izizathu kunye nokubeka unyango olwaneleyo.